Sample 93-003

NavDat sample number 36880 · DOLERITE

Sample

Sample ID	93-003
Rock name	DOLERITE
Rock type	PLUTONIC
Composition	MAFIC
Material	IGNEOUS

Location

Latitude	46.4647
Longitude	-121.582
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
25		18	33

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	50.13		WT%	XRF
TIO2	1.18		WT%	XRF
AL2O3	20.47		WT%	XRF
FEO	9.57		WT%	XRF
MNO	0.18		WT%	XRF
MGO	4.75		WT%	XRF
CAO	9.97		WT%	XRF
NA2O	3.1		WT%	XRF
K2O	0.46		WT%	XRF
P2O5	0.17		WT%	XRF

References

Swanson, Donald A (1996) Geologic map of the Hamilton Buttes Quadrangle, southern Cascade Range, Washington. Open-File Report - U. S. Geological Survey. 1996.